Results 81 to 90 of about 43,651 (248)

In vivo contrast free chronic myocardial infarction characterization using diffusion-weighted cardiovascular magnetic resonance. [PDF]

, 2014
BackgroundDespite the established role of late gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) in characterizing chronic myocardial infarction (MI), a significant portion of chronic MI patients are contraindicative for the use of ...
Bi, Xiaoming, Dawkins, James, Dharmakumar, Rohan, Fan, Zhaoyang, Li, Debiao, Marbán, Eduardo, Nguyen, Christopher, Sharif, Behzad, Tseliou, Eleni, Xie, Yibin   +9 more
core   +2 more sources

Effects and Correction of Patient Bulk Motion in Cranial DENSE MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Applications of DENSE to measure cardiac driven brain tissue pulsations are highly sensitive to bulk patient motion due to the sub‐millimeter displacement encoding required, limiting its accuracy, reproducibility, and use in pediatric and aging populations.
Caroline A. Doctor, Leonardo A. Rivera‐Rivera, Laura B. Eisenmenger, Sterling C. Johnson, Kevin M. Johnson   +4 more
wiley   +1 more source

Role of Cine-Magnetic Resonance Imaging in the Assessment of Mediastinal Masses with Uncertain/Equivocal Findings from Pre-Operative Computed Tomography Scanning

Diagnostics
Background: Malignant neoplasms originating from or involving the mediastinum represent a diagnostic and therapeutic challenge when they are in contact with nearby cardiovascular structures.
Umberto Cariboni, Lorenzo Monti, Emanuele Voulaz, Efrem Civilini, Enrico Citterio, Costanza Lisi, Giuseppe Marulli   +6 more
doaj   +1 more source

3T MRI evaluation of regional catecholamine-producing tumor-induced myocardial injury

Endocrine Connections, 2019
Objective: Regional differences in cardiac magnetic resonance, which can reveal catecholamine-induced myocardial injury in patients with pheochromocytoma, have not yet been assessed using 3T magnetic resonance imaging.
Satoshi Higuchi, Hideki Ota, Takuya Ueda, Yuta Tezuka, Kei Omata, Yoshikiyo Ono, Ryo Morimoto, Masataka Kudo, Fumitoshi Satoh, Kei Takase   +9 more
doaj   +1 more source

User-initialized active contour segmentation and golden-angle real-time cardiovascular magnetic resonance enable accurate assessment of LV function in patients with sinus rhythm and arrhythmias. [PDF]

, 2015
BackgroundData obtained during arrhythmia is retained in real-time cardiovascular magnetic resonance (rt-CMR), but there is limited and inconsistent evidence to show that rt-CMR can accurately assess beat-to-beat variation in left ventricular (LV ...
Contijoch, Francisco, Gorman, Joseph, Gorman, Robert C, Han, Yuchi, Hansen, Michael, Rears, Hannah, Rogers, Kelly, Witschey, Walter RT, Yushkevich, Paul   +8 more
core   +1 more source

Respiratory Motion‐Corrected Model‐Based 3D Water‐Fat MRA of the Thorax at 0.55 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The goal of this study was to develop a 5‐min 3D MRA acquisition at 0.55 T with predictable scan time, 100% data efficiency, and robust water‐fat separation. Methods For full data efficiency, the proposed method combined self‐gating with retrospective motion correction while ensuring a predictable 5‐min scan time.
Robert Stoll, Christoph Kolbitsch, Michaela Schmidt, Marcel Dominik Nickel, Tobias Schaeffter, Daniel Giese   +5 more
wiley   +1 more source

A Spatio‐Temporal Diffusion Model for Cardiac Real‐Time Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Real‐time imaging of cardiac function is favorable due to shorter scan times and becomes necessary when arrhythmia or inability to hold breath leads to insufficient quality of electrocardiogram (ECG)‐gated Cartesian cine. However, comparable spatio‐temporal resolution can only be achieved in undersampled settings, which in turn demand ...
Oliver Schad, Julius Frederik Heidenreich, Nils Petri, Viktor Hartung, Alena Kollmann, Thorsten Alexander Bley, Peter Nordbeck, Bernhard Petritsch, Tobias Wech   +8 more
wiley   +1 more source

Translational Insights Into Myocardial Deformation and Fibrosis in Hypertrophic Cardiomyopathy Using Diffusion Tensor MRI

JACC: Advances
Background: Hypertrophic cardiomyopathy (HCM) diagnosis often occurs after myocardium thickening develops, delaying intervention. Cardiac diffusion tensor imaging (cDTI) detects microstructural myocardial remodeling, offering potential for improved risk ...
Oumaima Laghzali, MSc, Danielle Kara, PhD, Shi Chen, BS, Siqin Liu, MD, Shahriar Shalikar, MSc, Mara-Camelia Rusu, PhD, Fatimunnisa Qadri, PhD, Lucie Carrier, PhD, Hsin-Jung Yang, PhD, Thoralf Niendorf, PhD, Min-Chi Ku, PhD, Christopher Nguyen, PhD   +11 more
doaj   +1 more source

Bright Ferritin for Non‐Invasive MRI Monitoring of the Fate of Transplanted hPSC‐Cardiomyocytes in the Infarcted Rat Heart

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To demonstrate that a recently reported bright ferritin magnetic resonance imaging (MRI) platform can track transplanted human pluripotent stem cell (hPSC)‐derived cardiomyocytes (hPSC‐CMs) longitudinally and on‐demand in the rat heart.
Keyu Zhuang, Faisal J. Alibhai, Beiping Qiang, Rocco Romagnuolo, Kyle D. W. Vollett, Bradley K. C. Freeman, M. Juliana Gomez‐Garcia, Tamilla Sadikov Valdman, Tameshwar Ganesh, Yu‐Qing Zhou, Hai‐Ying Mary Cheng, Michael A. Laflamme, Hai‐Ling Margaret Cheng   +12 more
wiley   +1 more source

Clinical experience with adaptive MRI-guided pancreatic SBRT and the use of abdominal compression to reduce treatment volume

Frontiers in Oncology
IntroductionThis work presents a method to treat stereotactic body radiation therapy (SBRT) for pancreatic cancer on a magnetic resonance-guided linear accelerator (MR-linac) using daily adaptation, real-time motion monitoring, and abdominal compression ...
William S. Ferris, Benjamin George, Kristin A. Plichta, Joseph M. Caster, Daniel E. Hyer, Blake R. Smith, Joel J. St-Aubin   +6 more
doaj   +1 more source